💓【Lightweight&Foldable&Small】The 14 liters packable backpack weighs only 0.41lb and can be folded into its built-in pouch as a Sandwich size. Easily pack it in your suitcase or purse. Easy to carry and store. Designed to easily pack in your suitcase for use at their destination as an ultra-lightweight back pack for the trip. 💦【Water-Resistant Backpack】Made with thickened water-resistant polyester material. Don't be afraid of getting wet even if it rains when outdoors hiking. 💎【Durable】Made of High-Quality tear and Nylon Material. Heavy-duty SBS metal zippers, smooth and uneasy to get damaged, can adapt to long-term use. Mesh shoulder straps are adjustable and breathable.